New data on pollen morphology of the genus Camphorosma (Chenopodiaceae)

Recent molecular phylogenetic studies of Camphorosmoideae (Chenopodiaceae) demonstrated that Camphorosma is monophyletic. Palynomorphological peculiarities are used in taxonomy as additional diagnostic features and pollen analysis. Pollen morphology was studied using light scanning electron microscopy, based on 13 specimens belonging to four species (C. annua, C. lessingii, monspeliaca songorica). The aim this research provide new data characteristics the above mentioned evaluate their taxonomic value. results obtained show grains pantoporate, spheroidal, circular outline, undulate or slightly edges; small medium-sized. Pores circular, with distinct margins. Exine sculpture nanoechinate, tectum psilate psilate-perforate. Pore membranes nanoechinate. Taxonomic relevance most important characters (pollen diameter, pore number, distance between pores centres, C/D value, nanoechini density, presence/absence perforations, number membranes, structure columellae) discussed. exine all analysed for first time current study. proved be an source information species-specific identification analysis within Camphorosma. interpreted existing framework.